Взять объекты в списке

for a, b in zip(some, some[1:]):
  print(a, b)

>>> from functools import reduce
>>> print(reduce(lambda a, c: 1 < c < 8 and a + [c, c] or a + [c],
...              range(1, 9), []))
[1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8]
>>>

>>> print(*map(lambda x: (x, x + 1), range(1, 8)))
(1, 2) (2, 3) (3, 4) (4, 5) (5, 6) (6, 7) (7, 8)
>>> 

some = list(range(1, 8))
print(some)
for i in range(0, len(some)-1):
    print(some[i], some[i+1])

li = ((i, i + 1) for i in range(8))
print(*li)